180071147 has 4 divisors (see below), whose sum is σ = 183902496. Its totient is φ = 176239800.

The previous prime is 180071081. The next prime is 180071197. The reversal of 180071147 is 741170081.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 180071147 - 2¹⁰ = 180070123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180071197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1915604 + ... + 1915697.

It is an arithmetic number, because the mean of its divisors is an integer number (45975624).

Almost surely, 2^180071147 is an apocalyptic number.

180071147 is a deficient number, since it is larger than the sum of its proper divisors (3831349).

180071147 is an equidigital number, since it uses as much as digits as its factorization.

180071147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3831348.

The product of its (nonzero) digits is 1568, while the sum is 29.

The square root of 180071147 is about 13419.0590951825. The cubic root of 180071147 is about 564.6959985188.

The spelling of 180071147 in words is "one hundred eighty million, seventy-one thousand, one hundred forty-seven".